On Fri, 3 Sep 2004, Oliver Neukum wrote:
> + udev = to_usb_device (dev); \
> + if (!udev->actconfig) \
> + return 0; \
> + len = usb_string(udev, udev->actconfig->desc.field, buf, PAGE_SIZE);\
>
> What will happen if you run this while the configuration is changed?
I don't know :) But there's a similar code just above that exports
configuration parameters, so I think it should be okay:
/* Active configuration fields */
#define usb_actconfig_show(field, multiplier, format_string) \
static ssize_t show_##field (struct device *dev, char *buf) \
{ \
struct usb_device *udev; \
\
udev = to_usb_device (dev); \
if (udev->actconfig) \
return sprintf (buf, format_string, \
udev->actconfig->desc.field * multiplier);
\
else \
return 0; \
} \
--
Alexander
Homepage: http://www.sensi.org/~ak/
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